Staple mode
When the print job specifications require stapling, the pages of the document are gathered inside the
unit. A jogger aligns the pages horizontally, and a paddle aligns the pages vertically. When all pages
of a job are gathered, a clamp compresses the stack and a staple is attached.
After the document is stapled, the jogger guides spread apart to release the stack, and the stapled
document falls into the stacker bin.
Figure 5-35 Jogger operation (top view)
Stacker mode
The stacker mode collates multiple-page print jobs without stapling them.
When the print job requires no stapling, the pages of the document are gathered inside the unit. A
jogger aligns the pages horizontally, and a paddle aligns the pages vertically. When all pages of a
job are gathered, the jogger guides spread apart, releasing the stack, and the document falls into the
stacker bin without being stapled.
Staple-jam detection
The stapler/stacker uses the inlet sensor (PS1301) and the delivery sensor (PS1302) to detect jams.
The microprocessor on the stapler/stacker-driver PCA determines a jam situation if the sensor
indicates that paper is present at an unexpected time or that paper is not present at the expected
time. The microprocessor on the stapler/stacker-driver PCA notifies the formatter that a jam has
occurred.
When a jam is detected, the transport process stops and a 13.XX.YY JAM message appears on the
control-panel display. For more information about jam messages, see
Resolving control-panel
messages.
Feed-delay jam
If the inlet sensor (PS1301) does not detect the leading edge of the media within a specific time
period after receiving a delivery-notice command, the microprocessor on the MBM-driver PCA
determines that a feed-delay jam has occurred.
134 5 Theory of operation
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